Home / 9,715.26-13,409.26-6,879.68

Finding the Fourth Proportional to 9,715.26, 13,409.26 and 6,879.68

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Solution

The fourth proportional to 9,715.26, 13,409.26 and 6,879.68 is: 9,495.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,715.26 : 13,409.26 = 6,879.68 : x
  2. Step 2: Convert to fraction form
    9,715.26/13,409.26 = 6,879.68/x
  3. Step 3: Cross multiply
    9,715.26x = 13,409.26 × 6,879.68
  4. Step 4: Simplify right side
    9,715.26x = 92,251,417.84
  5. Step 5: Solve for x
    x = 92,251,417.84/9,715.26
  6. Step 6: Final answer
    x = 9,495.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.